LFXTAL026908BULK

Overview

The LFXTAL026908BULK is a fundamental mode quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 14.7456 MHz with a frequency tolerance of ±20ppm and stability of ±50ppm across the -10°C to +60°C temperature range. The component features a load capacitance of 16pF and an equivalent series resistance (ESR) of 40 Ohms. It utilizes a surface-mount HC49/4HSMX package, measuring 11.30mm in length, 4.90mm in width, and 4.30mm in height.

Feature Summary

• Hermetically sealed construction using resistance-welded glass-to-metal seals within an inert atmosphere for environmental reliability.
• Surface-mount design utilizing gull-wing lead wires mounted on a plastic former for standard SMD assembly compatibility.

Applications

• High-frequency digital clock signal generation
• Microcontroller system timing references
• Communication interface synchronization

Procurement Notes

Verify the specific packaging configuration when ordering, as the suffix 'BULK' indicates loose piece packaging rather than tape-and-reel. Confirm that the HC49/4HSMX footprint matches the target PCB layout. Ensure the operating temperature range of -10°C to +60°C aligns with the final product's environmental requirements before integration.

Selection Notes

Select this component for applications requiring a 14.7456 MHz reference with moderate stability requirements. The HC49/4HSMX form factor offers a balance between size and mechanical robustness. Consider the 40 Ohm ESR value when designing the oscillator circuit to ensure proper startup conditions and loop gain margins are met.

Part Context

This part belongs to the industry-standard SMD crystal series from IQD Frequency Products. These components are designed to replace traditional through-hole crystals while maintaining similar electrical characteristics. The series supports various frequencies and packages, providing a scalable solution for modern electronics manufacturing.

Replacement Considerations

Direct substitutes include other manufacturers' HC49/4HSMX crystals rated at 14.7456 MHz with comparable load capacitance and ESR values. Verify pin-out compatibility and physical dimensions to ensure seamless replacement without PCB redesign.

FAQ

What is the aging specification for this crystal?

The documented aging rate is 5 ppm per year.

Is this component RoHS compliant?

Yes, the component is confirmed to be RoHS compliant.